Rear view mirror adjustable by electric motor

US4474428A · kind A · utility

Assignee

• Efrudec GmbH · DE

Inventors

• Erich Wunsch · Tutzing, DE
• Udo Wunsch · Schwieberdingen, DE
• Eckart Wunsch · Neuenbürg, DE

Key dates

• Filing date: Nov 18, 1981
• Grant date: Oct 2, 1984
• Expiry date: Nov 18, 2001

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/20432
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A remote-controlled rear-view mirror assembly having a mirror is movably supported in a housing and can be adjusted by an electric motor from a remote point. An electric motor is mounted in the mirror housing and has an electrically reversible direction of rotation and a stepdown gearing. There is a drive shaft having approximately at its center a driven coaxial cylinder of enlarged diameter with respect to the diameter of the drive shaft and a central annular shoulder dividing the coaxial cylinder into two substantially equal sections. A slipping clutch connects the motor with the drive shaft. Two eccentrics are rotatably mounted on the drive shaft on opposite sides respectively of the equal sections of the coaxial cylinder, each of these eccentrics comprises a cylindrical section and an eccentric disc. There are two wrap springs each of these wrap springs being wound in the same direction partly on one of the two equal sections and partly on one of the two cylindrical section of the eccentrics respectively. A transmission means connects the eccentric discs respectively to the mirror.